String was not recognized as a valid DateTime while converting from Arab Standard Time to datetime

Question

I want to convert String into DateTime. Everything is correct but don't know why I am getting this error;

String was not recognized as a valid DateTime

string  dtf = hdnFromDate.Value;

(While debugging I can see dtf value is Sun Dec 13 2020 00:00:00 GMT+0300 (Arab Standard Time)) and I am trying to convert into DateTime But no success I am converting in this way

DateTime date = DateTime.ParseExact(dtf, "dd/MM/yyyy", null);

I also try like this

DateTime dt= DateTime.ParseExact(dtf, 
                  "ddd MMM dd yyyy HH:mm:ss 'GMT'K '(Arab Standard Time)'", 
                  CultureInfo.InvariantCulture);

Where I am doing wrong?

Your second format [works just fine](https://rextester.com/UBQF20924) for me. What _exactly_ is the problem that you're having with it? — 41686d6564 stands w. Palestine, Dec 14 '20 at 06:52
What exactly is populating that hidden value with that string? Can you change it to use a more sensible format? — John Wu, Dec 14 '20 at 07:00
If you want to keep the timezone info use `DateTimeOffset.ParseExact(..` instead. — Magnus, Dec 14 '20 at 07:01

MichaelMao · Accepted Answer · 2020-12-14T07:02:30.800

Reference to DateTime.ParseExact Method

Converts the specified string representation of a date and time to its DateTime equivalent. The format of the string representation must match a specified format exactly or an exception is thrown.

So your datetime string should like this otherwise you will get exception

Mon Dec 14 2020 14:42:46 GMT+08:00 (Arab Standard Time)

or

Mon Dec 14 2020 14:42:46 GMT+0800 (Arab Standard Time)

You can try this to get what kind of string you need

Console.WriteLine(
   DateTime.Now.ToString("ddd MMM dd yyyy HH: mm:ss 'GMT'K '(Arab Standard Time)'", 
   CultureInfo.InvariantCulture)
);

If your string have whitespace li

Mon Dec 14 2020 14: 42:46 GMT+08:00 (Arab Standard Time)

Yoo can try

Console.WriteLine(
   DateTime.Now.ToString("ddd MMM dd yyyy HH: mm:ss 'GMT'K '(Arab Standard Time)'", 
   CultureInfo.InvariantCulture,
   DateTimeStyles.AllowWhiteSpaces)
);

`K` should work fine whether or not the timezone information has a colon (i.e., `GMT+08:00` vs `GMT+0800`). See [this](https://stackoverflow.com/questions/11618459/troubles-parsing-datetime-from-string#comment15384882_11618668) and the demo in my comment above. — 41686d6564 stands w. Palestine, Dec 14 '20 at 06:56

String was not recognized as a valid DateTime while converting from Arab Standard Time to datetime

1 Answers1